Hindu deity vs Vajra

Hindu deity and Vajra both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hindu deity	Yes	No	No	No
Vajra	Yes	No	No	No

As nouns, Vajra is a hyponym of Hindu deity; that is, Vajra is a word with a more specific, narrower meaning than Hindu deity:

Other hyponyms of Hindu deity include Aditya, Ahura, Asvins, Dharma, Garuda, Marut, Rhibhus, Ribhus, Soma, avatar.

Hindu deity (noun)	Vajra (noun)
a deity worshipped by the Hindus	Indra's thunderbolt